Malware Analysis Report

2024-11-15 04:58

Sample ID 240624-wwhpfaygqj
Target e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941
SHA256 e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941
Tags
socks5systemz botnet discovery
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941

Threat Level: Known bad

The file e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941 was found to be: Known bad.

Malicious Activity Summary

socks5systemz botnet discovery

Detect Socks5Systemz Payload

Socks5Systemz

Loads dropped DLL

Unexpected DNS network traffic destination

Executes dropped EXE

Checks installed software on the system

Unsigned PE

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-24 18:16

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-24 18:16

Reported

2024-06-24 18:18

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"

Signatures

Detect Socks5Systemz Payload

Description Indicator Process Target
N/A N/A N/A N/A

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 91.211.247.248 N/A N/A
Destination IP 152.89.198.214 N/A N/A
Destination IP 45.155.250.90 N/A N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1828 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp
PID 1828 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp
PID 1828 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp
PID 1232 wrote to memory of 3520 N/A C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1232 wrote to memory of 3520 N/A C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1232 wrote to memory of 3520 N/A C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1232 wrote to memory of 1632 N/A C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1232 wrote to memory of 1632 N/A C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 1232 wrote to memory of 1632 N/A C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe

"C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"

C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp

"C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp" /SL5="$100048,4745724,54272,C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s

Network

Country Destination Domain Proto
SE 45.155.250.90:53 buizuyo.com udp
US 8.8.8.8:53 90.250.155.45.in-addr.arpa udp
RU 152.89.198.214:53 buizuyo.com udp
US 8.8.8.8:53 214.198.89.152.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
LT 91.211.247.248:53 buizuyo.com udp
US 8.8.8.8:53 248.247.211.91.in-addr.arpa udp

Files

memory/1828-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1828-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-MLKRK.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp

MD5 bf530597367b891a3a6d5e2e1fcffb19
SHA1 718ada641ddb4179e033042339e09f46331c0a6b
SHA256 8e79a5b0e62fed326781ab7300a53f5ca0dd61b345adf957438cffd0dc9cf316
SHA512 8e28b4d7c9241d7d457eb1ec7e0aca92a49ae32df0a89688ab816bbf813f70bfd12138a2923f4cad0e116dec708b160c63816c1e711b168830cd96839041c129

memory/1232-12-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-IIPAK.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 92e08351885c1ff60328cc3749b4fe41
SHA1 fc8a7001049f873d8947b7ebd47dca342cf87581
SHA256 13395bf8ae317a661015ba46814273f9274c3beb91d4bc73f6fe69e404ea474e
SHA512 97cdc712e1133550f82f3b888cfaf14a28817bb3402ae91fea960863c0ae219fa184fcc3e44923c72f60382d18fe145627db8dd1782724877c91c57cf6cfa8d4

memory/3520-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3520-64-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3520-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3520-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-67-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1828-68-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1232-69-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/1632-70-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-73-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-76-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-79-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-82-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-85-0x0000000000A20000-0x0000000000AC2000-memory.dmp

memory/1632-87-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-92-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-95-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-98-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-101-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-104-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-107-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-110-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/1632-113-0x0000000000400000-0x00000000006C8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 18:16

Reported

2024-06-24 18:18

Platform

win11-20240611-en

Max time kernel

147s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"

Signatures

Detect Socks5Systemz Payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Socks5Systemz

botnet socks5systemz

Unexpected DNS network traffic destination

Description Indicator Process Target
Destination IP 91.211.247.248 N/A N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4900 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp
PID 4900 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp
PID 4900 wrote to memory of 2612 N/A C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp
PID 2612 wrote to memory of 3556 N/A C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2612 wrote to memory of 3556 N/A C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2612 wrote to memory of 3556 N/A C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2612 wrote to memory of 4564 N/A C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2612 wrote to memory of 4564 N/A C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe
PID 2612 wrote to memory of 4564 N/A C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe

"C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"

C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp

"C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp" /SL5="$40206,4745724,54272,C:\Users\Admin\AppData\Local\Temp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.exe"

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
LT 91.211.247.248:53 boykgfb.com udp
TR 94.156.8.80:80 boykgfb.com tcp
FR 195.154.185.134:2023 tcp
US 8.8.8.8:53 134.185.154.195.in-addr.arpa udp

Files

memory/4900-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4900-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-VD2EH.tmp\e7b94b77e6d437223bf142aaf0fbeb2c37cdbd209364bb026ce528f2be2c0941.tmp

MD5 bf530597367b891a3a6d5e2e1fcffb19
SHA1 718ada641ddb4179e033042339e09f46331c0a6b
SHA256 8e79a5b0e62fed326781ab7300a53f5ca0dd61b345adf957438cffd0dc9cf316
SHA512 8e28b4d7c9241d7d457eb1ec7e0aca92a49ae32df0a89688ab816bbf813f70bfd12138a2923f4cad0e116dec708b160c63816c1e711b168830cd96839041c129

C:\Users\Admin\AppData\Local\Temp\is-BVMHM.tmp\_isetup\_iscrypt.dll

MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

memory/2612-16-0x0000000000400000-0x00000000004BA000-memory.dmp

C:\Users\Admin\AppData\Local\Winypux\winypux32.exe

MD5 92e08351885c1ff60328cc3749b4fe41
SHA1 fc8a7001049f873d8947b7ebd47dca342cf87581
SHA256 13395bf8ae317a661015ba46814273f9274c3beb91d4bc73f6fe69e404ea474e
SHA512 97cdc712e1133550f82f3b888cfaf14a28817bb3402ae91fea960863c0ae219fa184fcc3e44923c72f60382d18fe145627db8dd1782724877c91c57cf6cfa8d4

memory/3556-59-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3556-60-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3556-65-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/3556-63-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-67-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-69-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4900-70-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2612-71-0x0000000000400000-0x00000000004BA000-memory.dmp

memory/4564-72-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-75-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-76-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-79-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-82-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-85-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-88-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/4564-91-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-96-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-99-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-102-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-105-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-108-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-111-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-112-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/4564-113-0x0000000000A30000-0x0000000000AD2000-memory.dmp

memory/4564-117-0x0000000000400000-0x00000000006C8000-memory.dmp

memory/4564-120-0x0000000000400000-0x00000000006C8000-memory.dmp